Chimney ventilator



gmc-14101, finzi/Z.

Feb; 5, 1929.

A. McDoNALD ET Al.

CHIMNEY VENTILATOR Filed Feb. 27, 1926 Peten-ted lelo. 5, 1929.

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.BUR/GH, PENNSYLVANLA.

implication filed. February Q7, 1328.

rihis invention relates to chimney ventilatersa and hes for one oit its objects to provide e neveh simple :ind inexpensive device or' this character which shall be edupted to dcl'lect the wine. iinpirqgingv against the seine in an upward direction so es to croute e positive upward draft within the chiinney.

i further object of the invention is the provision of e chin'ine57 ventilator which sheil be adjustable so es to permit of its use in connection with. e chimney of any size.

YWith the foregoing and other objects in view the invention consists of the constructioin con'ibination and arrangement of parts -iereineter fully described end claimed, und iilustretcd in the accompanying drawing, wherein Figure l is e eectionul view teken on a piane extending` verticallyT end centrally through e chiinney ventilator constructed in accordance with our invention,

Figure Q is e top plan view of the chimney .fentiletor,

Figure 3 is u view in side elevation oi e slightly inodiiied forni of the chimney ventilutor,

Figure iis u top plain view ci? the ineditiedl forni o'l" the chimney ventilator,

Figure 5 a. sectional view teken On a plaine extending vertically and centrally through u lfurther nlodil'ied iorin ot' the chimnef,7 ventilator,

Figure 6 is :i top plan view oit the chin'mcv ventihitm shown in Figure 57 :ind

iF igrure 7 is :L detail sectional view teken on the pinne indicated by the line '4l-'i' oi Figure (3.

Correspondiur)Y and like perte ere referred to in the following description, und designated in the several views of the accompanying drawing9 by similar reference characters.

Referring); to the drawing by reference characters, sind particularly to Figures l und 2, l designates u pipe which is adapted to have e snug` lit in the chimney and 2 zin apron which is adapted to overlie the upper end or the chimney. rihe pipe l is rectangular in plan end is or sectional formation to perinit ts horizontal dimensions to be varie l. The sections l of the pipe l are similar and of angular forinfin cross section, and ere errenged in assembled relation with their side edges overlapping. secured 'together for relative lateral adjust- The pipe sections la are.

n vimini Y Serel No. 81,121.

nient h v bolts which extend through hori- Zonteliy disposed slots il: in the overiupping portions elf the sections. The apron 2 or tr .criteri pvruniidnl torni, und the upper emi. thereof is secured to the pipe/,l below the upper end eti the pipe by the bolts 'lhc apron i.; also oit' sectional fornietion to perniitfirs horizontul dimensions to be varied in adapting the device for application to the chimney. ri`l1e apron sections 2 are similar end of angular iorinzition in horizontei section, und are arrange liin esscrnbied reiri ion with their side edges overlapping. rifhe apron Csectiruis a are provided with horizontal sie/s 5 ier the reception of the bolts 3.

The upper end oil vcrticel sion or the apron 2. und seid l with the ron, deiiect the sir iinpir against the s ine in :in upward direci on with the result that e posi tive upwei d drzrit is erected within the cl'riinnev.

its shown in iiigrures Z3 and Ji, the venti tor niej consist inerelkv or e, hollow truncated pyreinidel nieniber G provided et upper end with e vertical extension 7, und adopted to be positioned upon enc secured to the upper end oif the chimney. The ineniber 6 coinprises sections 6 und 'the vertical extension eon'iprieessections', 'llieseseeti ns siniiinr und or". ei'iguler ornietion in horizontzii section :md ere secured tooether in :i inzmner is oi" the deco permit the horiontzil di vice to he varied so es to swept u ei iliontion to :t chunncv et? :in v sine, 'ihe sections are assembled with their `id; everhuipiug relation rand zzre secured together liv bolts 8 which pues through horizontui niet# Si `iii the sections Zk rEhe ventilator shown in `ligrru'es 5,6 and 7 comprises e truncated pyreriiriui iuernber l0 provided et its upper end i vertical extension ll end n, truncated pyrunidzil outer incinber 152 provided et its upper end with e vertical extension o rifh'e vertical dimen- Le). sions er the outer ineniber l2 und it@l extension 13 are less than the respective corresponding' dimensions of the inner nieinber l0 and its extension il1 end the lower edge of the outer n'ieinber is spaced upwardly from the correspondin edge oi the inner ineinber and the upper edge or', the extension of seid outer member is spaced below the corresponding edge of the extension of the inner member. The outer member 12 and extension 13 are the pipe l constitutes e secured in spaced relation to the inner member l() and extension il by bolts le and spacing' sleeves l5. '.lhe inner member l0 and its extension 1l are made of similar sections l0 and llu which are of angular formation in cross section, and the outer member l2 and extension 13 are made oi similar sections l2 and l which are of angular formation in cross section. The parts are assembled with their edges in overlapping relation and the sections thereoil secured against casual relative movements by the bolts i4 which pass through slots l5 in the sections. rlhis device is also adjustable and is adapted tor application to a chimney of any size, and the inne member Yl0 thereof is adapted to be positioned upon and secured to the upper end et the chimney.

From the i'ioregoing and accon'ipanyine' drawing, it will be apparent that each oiio or the ventilator embodies up,'a.rdly and inwardly inclined surtaces t the upper ends of which is a vertical extension. These surfaces and extensions function jointly to detlect the wind upwardly in such a manner as to create a p sitive upward draft within the chimney. Furthermore all forms ot the ventilator are adjustable so to permit them to be used in connection with chimneys of dilierent sizes. The sections of the respective ventilators may be readily adjusted and secured in adjusted position against casual relative movement. rllhe dellector shown in Figures 5, G and 7 is especially adapted :tor use under conditions that require an exceptionally strong dratt, and such draft will be created in the chimney inconnection with which this device is used as the wind increases in velocity as it passes upwardly between the inner and outer members l() and l2 and their vertical extensions ll and 13'. The increase in velocity ot the wind is elitected by the angular arrangement of the member 1Q with respect to the member l0, the former inclin-I iir; diwxnwardiy and outwardly tri its upper to its lower end with respect to the latter, and the wind reaches its maximum velocity in. the space between the extensions ll and 13.

lt should be understood that the drawing is mirely illustrative and does not pretend to giv', exact proportions. Furthermore, the said thawing` is illustrative of a preferred construction7 it being our expectation that various changes and modifications may be made without departing trom the spirit and ,scope ot our invention.

llvlhat is claimed is l, A ventilator comprising a hollow inner member of sectional formation. an upwardly and inwardly inclined hollow outer member or" sectional formation and shorter than the inner member, the outer nember extending` from a plane below the upper end of the inner member to a plane above the lower end ot the inner member, 'the sections ot each member having their side edges arran ed in overlapped relation and provided in sai-d portions with horizontally disposed registoring` slots7 and bolts passing` through the slots to support the outer member Yfrom the inner mei-.ther and to secure the sections of the members together tor relative lateral adi stment.

ventilator coreLA i and inwardly inclined hollow irier member7 an upwaii7 y and inwardly ii tred hollow outer membc ortcr than the ruler nicmber, the members being arranged in spaced relation and the outer member being' arranged at an 'angle to the inner member and extending; Vlrom a pla-ne below the upper end ot the inner member to a plane above the lower end of the inner member, the upper ends of the members being` vertically arranged and relatively spaced and he upper end the inner member beiirig` longer than and extending above the upper end of the outer member, and means for securingl the members together.

3. A ventilator comprising an upwardly and inwardly inclined hollow inner member, an upwardly and inwardly inclined hollow outer member .shorter than the inner nnnnberH the members bein rel ati vely spaced and annularly related and the outer member' entetulingl from a plane below the upper end ol? the inner member to a plane above the lower end oi the inner member, the members being of seetional 'formation and provided with vertically arranged and. relatively spaced upper ende` oi relatn'ely diiierent heightsH and means securing* the members together and seeming the sections thereof together ior relative lateral adjustment.

fl. fr ventilator cmnprisinp; a hollow inner member ot sectional formation., an upwardly and iowa V inclined hollow outer member oli sectional rormation and shorter than the inner member, the outer member extending from a plane below tie upper end ot the inner men'ibcr to a plane above the lower end oi the men'iber, the sections ot each member having; their side edges arranged in adjustable overlapping relation, and tastening;l devices securing; the members of each tion in their adjustment and also connectthe sections to4 ether and maintaining kent in relative position.

ln testimony whereot` we atlix our signatures.

l l que upwardly rliLllXi/iNDER MGDONALD. llllLLlAlvi O. SMTH. 

